1997 Nissan 240SX Key Fob Battery Replacement Guide
If your 240SX key is not unlock doors well, the battery more likely needs to be changed. In this article, we explained how to disassembly your remote key fob and change your Nissan key battery step by step.
What is the battery remote key fob use
Changing battery in key fob require flat head screwdriver and CR2025 battery. Prepare these materials and tools before opening and make sure to match the size of your fob’s batteries.- flat head screwdriver
- 1xCR2025 battery
Step by step instruction
Inside of your remote key fob installed tiny coin battery. Carefully try to open your keyless entry remote with hands or flat head screwdriver. Replace 1xCR2025 battery with flat head screwdriver.
Change old battery with new one CR2025. Every battery has a negative and positive side and if you put the wrong connector down, the current cannot go into your circuit board and make it work. Check polarity on battery, by "+" mark.
After the new battery installed, check keyless entry remote by pressing buttons. If all functions works, assemble your keyless entry fob's shell in reverse order.
The last thing to do is put your cover back on fob. Accurately try to put the pieces in place by hands from top to bottom. Inspect your fob shell for gaps. If it is not tightly closed try to repeat last step.
How to replace the battery video guide
How To Replace Nissan 240SX Key Fob Battery 1997
Still not working? Buy new one